Answer:
y = -7/8x - 1 1/2
Explanation:
m = y2 - y1/ x2 - x1 is how you find the m in y=mx+b
(I converted the fractions to decimals)
substitute you slope and (x,y)
y = mx + b
-5 = -0.875(4) + b
-5 = -3.50 + b
-1.50 = b
b = -1.50
then just convert back to a fraction